Guidance And Control Requirements For High Speed Rollout And Turnoff Roto
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Guidance And Control Design For High Speed Rollout And Turnoff Roto
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-25
Guidance And Control Design For High Speed Rollout And Turnoff Roto written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-25 with categories.
A ROTO architecture, braking and steering control law and display designs for a research high speed Rollout and Turnoff (ROTO) system applicable to transport class aircraft are described herein. Minimum surface friction and FMS database requirements are also documented. The control law designs were developed with the aid of a non-real time simulation program incorporating airframe and gear dynamics as well as steering and braking guidance algorithms. An attainable objective of this ROTO system, as seen from the results of this study, is to assure that the studied aircraft can land with runway occupancy times less then 53 seconds. Runway occupancy time is measured from the time the aircraft crosses the runway threshold until its wing tip clears the near side of the runway. Turnoff ground speeds of 70 knots onto 30 degree exits are allowed with dry and wet surface conditions. Simulation time history and statistical data are documented herein. Parameters which were treated as variables in the simulation study include aircraft touchdown weight/speed/location, aircraft CG, runway friction, sensor noise and winds. After further design and development of the ROTO control system beyond the system developed earlier, aft CG MD-11 aircraft no longer require auto-asymmetric braking (steering) and fly-by-wire nose gear steering. However, the auto ROTO nose gear hysteresis must be less than 2 degrees. The 2 sigma dispersion certified for MD-11 CATIIIB is acceptable. Using this longitudinal dispersion, three ROTO exits are recommended at 3300, 4950 and 6750 feet past the runway threshold. The 3300 foot exit is required for MD-81 class aircraft. Designs documented in this report are valid for the assumptions/models used in this simulation. It is believed that the results will apply to the general class of transport aircraft; however further effort is required to validate this assumption for the general case. Goldthorpe, S. H. and Dangaran, R. D. and Dwyer, J. P. and McBee, L. S. an...
Speed Profiles For Deceleration Guidance During Rollout And Turnoff Roto
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Author : L. Keith Barker
language : en
Publisher:
Release Date : 1999
Speed Profiles For Deceleration Guidance During Rollout And Turnoff Roto written by L. Keith Barker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Airplanes categories.
Two NASA goals are to enhance airport safety and to improve capacity in all weather conditions. This paper contributes to these goals by examining speed guidance profiles to aid a pilot in decelerating along the runway to an exit. A speed profile essentially tells the pilot what the airplane's speed should be as a function of where the airplane is on the runway. While it is important to get off the runway as soon as possible (when striving to minimize runway occupancy time), the deceleration along a speed profile should be constrained by passenger comfort. Several speed profiles are examined with respect to their maximum decelerations and times to reach exit speed. One profile varies speed linearly with distance; another has constant deceleration; and two related nonlinear profiles delay maximum deceleration (braking) to reduce time spent on the runway.
Guidance And Control Requirements For High Speed Rollout And Turnoff Roto
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Author :
language : en
Publisher:
Release Date : 1995
Guidance And Control Requirements For High Speed Rollout And Turnoff Roto written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Guidance And Control Design For High Speed Rollout And Turnoff Roto
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Author :
language : en
Publisher:
Release Date : 1996
Guidance And Control Design For High Speed Rollout And Turnoff Roto written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Rollout And Turnoff Roto Guidance And Information Displays
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Author : Richard M. Hueschen
language : en
Publisher:
Release Date : 2001
Rollout And Turnoff Roto Guidance And Information Displays written by Richard M. Hueschen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Instrument landing systems categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1995-10
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-10 with Government publications categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1995
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Government publications categories.
Nasa Technical Memorandum
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Author :
language : en
Publisher:
Release Date : 1996
Nasa Technical Memorandum written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Aeronautics categories.
Concept Of Operations For Commercial And Business Aircraft Synthetic Vision Systems
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Author : Daniel M. Williams
language : en
Publisher:
Release Date : 2001
Concept Of Operations For Commercial And Business Aircraft Synthetic Vision Systems written by Daniel M. Williams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Airplanes categories.
A concept of operations (CONOPS) for the Commercial and Business (CaB) aircraft synthetic vision systems (SVS) is described. The CaB SVS is expected to provide increased safety and operational benefits in normal and low visibility conditions. Providing operational benefits will promote SVS implementation in the fleet, improve aviation safety, and assist in meeting the national aviation safety goal. SVS will enhance safety and enable consistent gate-to-gate aircraft operations in normal and low visibility conditions. The goal for developing SVS is to support operational minima as low as Category IIIb in a variety of environments. For departure and ground operations, the SVS goal is to enable operations with a runway visual range of 300 feet. The system is an integrated display concept that provides a virtual visual environment. The SVS virtual visual environment is composed of three components: an enhanced intuitive view of the flight environment, hazard and obstacle detection and display.